Berkard dobbas



(No Model.)

B. DQBBAS.

MINERS LAMP.

. Patented Aug. 29, 1882.

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By [ifs/UT.

N. PETERS. Fholn-Mhognpher, Waahinghm, D c

UNTTED STATES PATENT OFFICE.

BERNARD DOBBAS, OF GREENWOOD, CALIFORNIA.

MINERS LAMP.

SPECIFICATION forming part of Letters Patent No. 263,493, dated August29, 1882. Application filed April 8, 1882. (No model.)

To all whom it may concern:

Be it known that I, BERNARD DOBBAS, of Greenwood, in the county of ElDorado and State of California, have made and invented a certain new anduseful lmprovementin Miners Lamps; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawings.

My invention relates to an improved lamp for laborers and miners useunder ground,

and in similar localities where it is subjected to rough usage.

It has for its object to produce a strong, durable, andcheaply-constructed lamp, capable of being suspended or set up in anydesired position for service, and, when not in use, beingadapted to bereadily carried about by the workman from place to place upon hisperson.

The following'description clearly sets forth the nature of my inventionand the manner of carrying out, applying, and using the same.

In the accompanying drawings, Figure l is a vertical section takenlongitudinally through the body of the lamp across the center. Flg.2-shows the lamps suspended in position for service. Fig. 3 1s a topview of the front half of the body, where the inlet and the wick tubeare located.

The lamp-body A has in cross section the form of a double-convex disk,hollow within,

and having an opening in the uppermost side to permit the introductionof oil and the insertion of a wick into the chamber. It has somewhat theshape of a canteen with the neck taken off, and when in service it isheld in a horizontal position.

At opposite sides-and projecting above the top face, are two lugs orears, n I), to receive and form points of connection for the ends of abail or handle, 0. These ears are placed diametrically opposite to eachother, and have the ends of the bail connectedgto them by a hinge-joint,a, so that the lamp-body is maintainedin a. horizontal positiongwhatevermay be the conditions under which it is employed. This construction alsopermits the body A to be turned flatwise intogthe space between the sidebars of the bail when being carried about from place to place and not inuse, or when packed for shipment.

The aperture E in the top of the body is closed by a cap or plate, G, inwhich are fixed a wick-tube, g, and an air-vent,g. By means of athumb-screw, I, that passes down through the plate and takes into abridge piece or bar, 70, this covering-piece is held down in placewithin the rimj of the opening E. The object of this construction istwofold. It affords a large opening in the lamp-body, of suitable sizefor readily removing a core from the interior space, so that the body Acan be easily cast in one piece, and it enables the wick and vent tubesto be readily replaced when worn out or broken, and to be removed forcleaning purposes.

The body A can be produced either by casting it in one piece or bybrazing together two saucer-shaped disks, rim to rim. The ears I) b canalso be formed either by casting them integral with the body or byattaching them in position in slots cut into the sides of the body andsecuring them all together by brazing the joints.

This lamp is especially adapted for rough usage and handling. It ischeap and durable, and is readily placed or suspended in any requiredposition for service.

The swivel H at the top of the bail forms a place of attachment for asuspension-hook or a chain.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

1. The lamp-body A, having the ears b b, for attachment of a boil orhandle, and the aperture E in its top, in combination with a cap orcover, G, having Wick and vent tubes 9 g, and a screw, I, and bar It,having a screwthreaded hole, substantially as described.

2. The combination of the lamp-body A, having the aperture E in its top,with a surrounding rim, j, and the plate Gr, with Venttube and wick-tubeg g, and the fastening device consisting of the thumb-screw, and thebridge-piece fixed across the aperture E, substantially as described.

3. The improved miners lamp herein described, eonsisting of the body A,of double convex shape, having ears I) b, the bail or handle (J,attached by hinge-joint to the ears, the aperture E in the top of thebody, the bridge-piece, and the plate G, with tubes g g, andfastening-screw, substantially as set forth.

Witness my hand and seal.

BERNARD DOBBAS.

In presence of- EDWARD E. OsBoRN, D. SELLEGK.

